45 Years is a 2015 British romantic drama film directed and written by Andrew Haigh, which offers richly thought-provoking rewards for fans of adult cinema -- and a mesmerizing acting showcase for leads Charlotte Rampling and Tom Courtenay.

The film is based on the short storyIn Another Country by David Constantine. There is just one week until Kate Mercer's forty-fifth wedding anniversary and the planning for the party is going well. But then a letter arrives for her husband explaining that the body of his first love has been discovered, frozen and preserved in the icy glaciers of the Swiss Alps. By the time the party is upon them, five days later, their lives and marriage are in turmoil.

The film was screened in the main competition section of the 65th Berlin International Film Festival. Charlotte Rampling won the Silver Bear for Best Actress and Tom Courtenay won the Silver Bear for Best Actor. At the 88th Academy Awards, Rampling received a nomination for Best Actress in a Leading Role.

It was selected to be screened in the Special Presentations section of the 2015 Toronto International Film Festival and also screened at the 2015 Telluride Festival.